/*
 * Copyright 2007 - The JDPF Project Team (http://www.jdpf.org) 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); 
 * you may not use this file except in compliance with the License. 
 * You may obtain a copy of the License at 
 * 
 * http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, 
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and 
 * limitations under the License. 
 */
package org.jdpf.core.kernel.plugins;

import java.util.ArrayList;
import java.util.List;

import org.jdpf.core.plugins.blocks.AbstractTransitionPlugin;

public abstract class AbstractMonitorService {
	protected List<IMonitorListener> listeners;

	protected List<AbstractTransitionPlugin> plugins;

	protected long delay;

	public abstract void startMonitoring();

	public abstract void stopMonitoring();

	public void addMonitorListener(IMonitorListener listener) {
		listeners.add(listener);
	}

	public void removeMonitorListener(IMonitorListener listener) {
		listeners.remove(listener);
	}

	public AbstractMonitorService(List<AbstractTransitionPlugin> plugins) {
		this.plugins = plugins;
		listeners = new ArrayList<IMonitorListener>();
		this.delay = 3000; // Default Delay (3s)
	}

	public void setDelay(long ms) {
		this.delay = ms;
	}
}
